Rotary pump.



H. RUBIN.

ROTARY PUMP. APPucA'Luu EILED a. s. 191:.

1,250,021. v Patehted Dec. 11,1917.

2 SHEETS-SHED: 1.

'wf'rumssmsz ,n l INVENTOR A; W M

A rumu my! H. RUBIN.

ROTARY PUMP. APPLICATION FILED MAR-6.19M.

1250,0531 Patented Dec. 11, 7.

. 2 swans-s HIE 'wrrmussms: INVEQTOR fl 'yflubmv M! i wym ject of the Emperor of Russia, residing at has a pin fitting into a STA s {PA OFFICE.

mum? norm, O'F.OAKLAND, CALIFORNIA, Assmnon or FOR'IY-NINE one nvnnn'nnrns'ro EDWARD SUGARMAN, or sen rnsncrsco, camro mm.

ROTARY PUMP.

To all whom it may 001mm Be it known that 1,,Hannr RUBIN, a sub Oakland, in the county of Alameda and State of California, have invented a new and useful Im rovement in Rotary Pumps, of which the ollowing is a speci cation.

' This invention relates to rotary pumps of the type employing a rotor journaled eccentrically" in a casing and carrying radial vanes Lslidable endwise in hearings on the rotor; and has for-sits object to simplify and improve the construction and operation of such devices.

In prior constructions with which I am familiar the vanes extend no farther wardly than the center of the rotor which results in a comparatively short hearing for these members with consequent liabilityoi. breakage under excessive strains. In the present device the vanes are overlapped and are made as long as or longer than the diameter of the rotor, wl'ierehy' a much longer bearing support is provided. Where more than two vanes are employed they are made to cross each other b cutting awa v a portion of each Where they intersect. Also in such prior' constructions springs are gen erally made-use of to control the anes. while in the present device the outer end of earh. rotatable ring or guide in the casing. which pins. in addition to controlling the position of the vanes. lend additional support to the outer ends of the same and overcome the vibrations usually present in extremely long or wide vanes.

One form which my invention may assume is exemplified in the .following description and illustrated in the accompanying drawin which-- r Figure lshows a longitudinal. central, sec tional view of device embodying my invention.

Fig. 2 shows a centralcross-sectional view of the" same.

In the drawings, I have shown a casing Specification of Letters latent.

slots and of a Width sufiicient to One end of. each the rings 18.

friction or breakage.

Patented Dec. 11, 1917.

Application filed March 6, 1917. Serial No. 152,641.

Extending diametrically through the are intersecting slots to receive overlapping vanes 16, the latter being in the form of flat plates extending entirely throu' h the axial length of the casing.

vane carries pins 17 to enter rings 18, the

latter rotatable .in grooves formed in the end walls of the casing at the annulus thereof. The overlapping vanes-are placed in contact with'each other and receive support throughout the entire diameten of t e '11 the" boss and are freely slidahle endwisetherein and may he made long or even longer than the diameter of the said boss. n the present. form the proportion is such that when the vane is projected farthest from the boss the in 1' end thereof terminates nearthe' periphery thereof at the opposite side.

i Where more than two vanes are employed they can he crossed by cutting away a portion 19, as shown in Fig. 1. In such cases the pins 17 willhave to mov-e relative to. and. therefore, I provide elongated slots 2-0 in the latter to receive the pins.

channel grooves in the casing. The rings not only serve to" guide and control the vanes in an endwise d1rection,'to insure a satis: factory fit between the cas ng and vane, but

also. support the said vanes against vibrasible to increase. the length and widthhi:

the varies and thespeed of the rotor to any desired extent without danger of excessive By separating two parts of the boss the notched "anes can be inserted or removed readily.

This pump is designed to rotate at high speeds. and therefore .I provide a speclal form of journal bearin which will retain-oil and insure constant luhrication. This comprises a sleeve 21 formed on each end wall of the casing and made somewhat-larger than the shaft 13 and having a flange 22'at its inner end against which the boss 14 rests at the inner side, the outer side of said flange receivin a packing 23. A collar 24 is fitted within t e sleeve 21 and forms an oil pocket 25 around the shaft. This collar is pressed endwise against the packing 23, by means 8( It is obvious hat tlieirings me be. dispensed with and the pins 17 fitte of a flange member '26 elai'nped to the outer end of the sleeve 21'; a packing 21', similar to the packing 23, being fitted between the member 26 and the adjacent end of the cellar. Oil introduced tn the bearing through a eup'28 carried on the sleeve and the end pressure. against the paclcings 2i and 27 st) ex'pands them. as to n event leakage of oil from the pocket Vith such a hearing an exceedingly Small quantity of oil is,- re quired to il'isure'e-(mstant lubrication.

Various changes in the construction and. arrangement of the several. parts herein 'sliuwn and described may be employed Wltll out departing from thespirit ufniy iruen tiun disclosed in the appended claims! Having thus described rnyjinvention, what I Claim and'desire to secure-by Letters Patent. is-

1. In a rotary pump, a casing havihgarr 'nular grooves n its epposing side walls, a

rotor jeurnaled et'zcen'trica'liy in the casing, vanes carried slidahl in the roter each having oppositely extending pins engaging in the annular gitneves 0f the casing to retain (mqend adjacent the rim of said easing, and means operable in the casing grunves and connectingthe pins of the, vanes.

' 2. In a rotary pump, a casing having annular grt-mves in its epposing side walls,

a rotor journaled eeeentrically in the easin vanes carried sl'n'la-hbin the rotor each having nppositely extending pins engaging in the annular grmjves of the casing to retain ene end adjacent the rim of said casing, and

rings connecting the pins of the vanes and operating in the grooves of the casing.

ii. In a rotary pump, a easing having an nular grom es in its opposing side walls, a rntur jeurnaled eecentrieally in the casing, vanes carried slidably in. the rotor each hav- I-ig oppositely extending pins engaging in the annular groove of the casing to retain one end adjacent the rim at said casing, and

ring slidahle around in the grooves of the casing and formed with slots receiving the pins '01" the vanes;

4. In a rotary. pump, a casing, a Peter ournaled therein eecentrieally, a'ngularly related vanes slidahly carried by the rotor,

means to retain one end of each vane adja cent the rim of the casing, and means connecting the specified ends of the vanes for limited circumferential 'relative movement.

A. rotary pump eoniprising a casing, a rotor piurnaled eceentriealiy therein, ,YttIlES carried slidahly in the rotor each having one end retained ad acent tn'the rim of the eas mg; and the ether end passed through the retnr and receiving; suppnrt' throughcut the entire diameter thereof, means an the casing for supporting and guiding the upper ends of thcyanesgsaid means cnmg'irising a ring rotatable 0n the easii'zg, and a. eennectifin be" tween said ring and vane.

In testimony w'l'ierenf I have hereunte set my hand.

HARRY 

